Interesting thermomagnetic history effects in the antiferromagnetic state of SmMn2Ge2

被引:5
作者
Roy, SB [1 ]
Chaudhary, S
Chattopadhyay, MK
Chaddah, P
Sampathkumaran, EV
机构
[1] Ctr Adv Technol, Low Temp Phys Lab, Indore 452013, India
[2] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India
关键词
D O I
10.1088/0953-8984/14/41/332
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We present results of magnetization measurements showing that the magnetic response of the antiferromagnetic state of SmMn2Ge2 depends on the path used in the field (H)-temperature (T) phase space to reach this state. A distinct signature of metastability is observed in this antiferromagnetic state when obtained via field-cooling/field-warming paths.
引用
收藏
页码:9779 / 9784
页数:6
相关论文
共 29 条
[21]   Study of minor hysteresis loops in the usual and anomalous superconducting regime of (Ce0.95Nd0.05)Ru-2: Evidence of a first-order transition [J].
Roy, SB ;
Chaddah, P .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1997, 279 (1-2) :70-78
[22]   Magnetic irreversibility and a marginal phase transition in UCu2Ge2 [J].
Roy, SB ;
Pradhan, AK ;
Chaddah, P ;
Park, JG .
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1997, 75 (02) :303-310
[23]   Study of the antiferromagnetic phase in Sm(Mn1-xCrx)(2)Ge-2 [J].
Saha, S ;
Ali, N .
JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 250 (1-2) :651-654
[24]   Magnetoresistance anomalies and multiple magnetic transitions in SmMn2Ge2 [J].
Sampathkumaran, EV ;
Paulose, PL ;
Mallik, R .
PHYSICAL REVIEW B, 1996, 54 (06) :R3710-R3713
[25]   Magnetic structure and transitions of SmMn2Ge2 [J].
Tomka, GJ ;
Kapusta, C ;
Ritter, C ;
Riedi, PC ;
Cywinski, R ;
Buschow, KHJ .
PHYSICA B, 1997, 230 :727-730
[26]   Magnetic structure of 154SmMn2Ge2 as a function of temperature and pressure [J].
Tomka, GJ ;
Ritter, C ;
Riedi, PC ;
Kapusta, C ;
Kocemba, W .
PHYSICAL REVIEW B, 1998, 58 (10) :6330-6338
[27]   MAGNETORESISTANCE OF SMMN2GE2 - A LAYERED ANTIFERROMAGNET [J].
VANDOVER, RB ;
GYORGY, EM ;
CAVA, RJ ;
KRAJEWSKI, JJ ;
FELDER, RJ ;
PECK, WF .
PHYSICAL REVIEW B, 1993, 47 (10) :6134-6137
[28]   DISEQUILIBRATION OF THE PINNED CHARGE-DENSITY-WAVE STATE BY SLIGHT CHANGES IN TEMPERATURE [J].
WANG, ZZ ;
ONG, NP .
PHYSICAL REVIEW B, 1986, 34 (08) :5967-5969
[29]  
WHITE RM, 1979, LONG RANGE ORDER SOL, P12